RE: [PHP] Need unrounded precision

From: Date: Mon, 12 Oct 2009 06:37:21 +0000
Subject: RE: [PHP] Need unrounded precision
References: 1  Groups: php.general 
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-----Original Message----- From: Andre Dubuc [mailto:aajdubuc@webhart.net] Sent: 02 January 2010 03:20 AM To: php-general@lists.php.net Subject: [PHP] Need unrounded precision Hi, I need to extract the first digit after the decimal point from a number such as 28.56018, which should be '5'. I've tried a few methods to accomplish this. If I use 'ini_set' I would need to know the number of digits before the decimal (which, unfortunately, I would not have access to). Then I've tried: <?php $elapsed = 28.56018; $digit = round($elapsed, 1); // rounds result is '6' $digit = number_format($elapsed, 1); // still rounds result to '6' ?> What I need is only the first digit after the decimal -- all the rest could be 'chopped' or discarded but without rounding the first digit after the decimal point. Is there any way of doing this? I'm stumped. Tia, Andre -- One way that should work regardless the number of digits before/after the decimal is: - convert to string (sprintf or typecast) - strpos the decimal - grab the char from the next position Cheers Arno

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